`max_results=500` incompatible with `tweet.fields=context_annotations`

Twitter now restricts max_results to be 100 instead of 500 if tweet.fields=context_annotations is used.

{
  "errors": [
    {
      "parameters": {
        "tweet.fields": [
          "context_annotations"
        ],
        "max_results": [
          "500"
        ]
      },
      "message": "when requesting `tweet.fields=context_annotations` `max_results` must be less than or equal to `100`"
    }
  ],
  "title": "Invalid Request",
  "detail": "One or more parameters to your request was invalid.",
  "type": "https://api.twitter.com/2/problems/invalid-request"
}

Currently twarc requests all fields and expansions, so this effectively limits us to only request 100 tweets per call.

The trade-off here is: request 500 tweets without the context annotations, or request 100 with. Requesting 100 will make retrieval slower.

Related to #493

As a stopgap, i committed a change to make the limit 100.

[igorbrigadir]

It’s fixed in main already, so a new release will do it. And we can do #493 later

[edsu]

This will be an interesting one for Twitter to explain in their documentation. We should have some fun with this when we implement “support” for it in twarc.